Influence of digital elevation models on landslide susceptibility with Logistic Regression Model
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/39052 |
Resumo: | This paper focuses on the influence of Digital Elevation Models on the landslides susceptibility assessment in agricultural terraces, using Logistic Regression statistical model.This study was performed in a watershed located at Carvalhas Estate in Douro Valley, using an inventory of 109 landslides. To analyse the influence of the digital elevation model (DEM) resolution we used three DEMs, (A), (B) and (C). The DEMs (A) and (B) were directly obtained by processing aerial images and extracting different resolutions, 1 and 5 meters, respectively. The DEM (C), with 5m resolution, was processed with Topo to Raster interpolation method, using as input data contour lines of 10 m interval, elevation points and hydrography. The Logistic Regression was performed using two models which are distinguished by the independent variables selection. At model 1 was used the slope, curvature, raiser slope, riser height, contributing areas and topographic wetness index. In model 2 we decide remove the independent variables related with the terrace geometry, riser slope and riser height. The result seems to indicate that there is no significant influence of different resolutions of Digital Elevation Models in susceptibility modelling at this small scale and using statistical methods. The independent variables riser slope and riser height provide information of the terraces geometry and the construction techniques that enter the modelling process with more detailed information. |
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Influence of digital elevation models on landslide susceptibility with Logistic Regression ModelInfluência dos modelos digitais de elevação na susceptibilidade a escorregamento com Modelo de Regressão LogísticaStatistical ModellingLandslidesAgriculture TerracesDouro Demarcated RegionThis paper focuses on the influence of Digital Elevation Models on the landslides susceptibility assessment in agricultural terraces, using Logistic Regression statistical model.This study was performed in a watershed located at Carvalhas Estate in Douro Valley, using an inventory of 109 landslides. To analyse the influence of the digital elevation model (DEM) resolution we used three DEMs, (A), (B) and (C). The DEMs (A) and (B) were directly obtained by processing aerial images and extracting different resolutions, 1 and 5 meters, respectively. The DEM (C), with 5m resolution, was processed with Topo to Raster interpolation method, using as input data contour lines of 10 m interval, elevation points and hydrography. The Logistic Regression was performed using two models which are distinguished by the independent variables selection. At model 1 was used the slope, curvature, raiser slope, riser height, contributing areas and topographic wetness index. In model 2 we decide remove the independent variables related with the terrace geometry, riser slope and riser height. The result seems to indicate that there is no significant influence of different resolutions of Digital Elevation Models in susceptibility modelling at this small scale and using statistical methods. The independent variables riser slope and riser height provide information of the terraces geometry and the construction techniques that enter the modelling process with more detailed information.: O artigo demonstra a influência dos Modelos Digitais de Elevação na avaliação da suscetibilidade a movimentos de vertente em terraços agrícolas, utilizando o modelo de base estatística -Regressão Logística. O estudo foi realizado numa bacia hidrográfica localizada na Quinta das Carvalhas, no Vale do Douro, utilizando um inventário de 109 movimentos de vertente. Para analisar a influência da resolução do Modelo Digital de Elevação (MDE), utilizaram-se três MDE’s, (A), (B) e (C). Os MDE’s (A) e (B) foram obtidos diretamente pelo processamento de imagens aéreas e extração de diferentes resoluções, 1 e 5 metros, respetivamente. O MDE (C), com resolução de 5 m, foi processado com o método de interpolação Topo to Raster, utilizando como dados de entrada curvas de nível com equidistância de 10 metros, pontos cotados e a hidrografia. A Regressão Logística foi realizada utilizando dois modelos que se distinguem pela diferente seleção das variáveis independentes. No modelo 1 utilizaram-se o declive, curvatura, inclinação do talude, altura do talude, área contributiva e índice topográfico de humidade. No Modelo 2, removeram-se as variáveis independentes relacionadas com a geometria do terraço, nomeadamente a inclinação do talude e a altura do talude. Os resultados indicam que não existe influência significativa na modelação da suscetibilidade com métodos estatísticos, a uma pequena escala, utilizando diferentes resoluções dos MDE´s. As variáveis independentes, inclinação do talude e altura do talude, fornecem informações relativas à geometria e técnicas de construção dos terraços, e permitem um processo de modelação com informações mais detalhadas.Universidade de São Paulo, Faculdade de Filosofia, Letras e Ciências Humanas Departamento de GeografiaRepositório da Universidade de LisboaGonçalves, JoséFaria, AnaBateira, CarlosFernandes, JoanaOliveira, Ana2019-07-11T12:12:42Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/39052engOliveira, A., Fernandes, J., Bateira, C., Faria, A., Gonçalves, J. (2018). Influence of Digital Elevation Models on Landslide Susceptibility with Logistic Regression Model. Revista Do Departamento De Geografia, 36, 33-47. https://doi.org/10.11606/rdg.v36i0.150111.2236-287810.11606/rdg.v36i0.150111info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T16:37:16Zoai:repositorio.ul.pt:10451/39052Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:52:49.412527Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model Influência dos modelos digitais de elevação na susceptibilidade a escorregamento com Modelo de Regressão Logística |
title |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model |
spellingShingle |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model Gonçalves, José Statistical Modelling Landslides Agriculture Terraces Douro Demarcated Region |
title_short |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model |
title_full |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model |
title_fullStr |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model |
title_full_unstemmed |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model |
title_sort |
Influence of digital elevation models on landslide susceptibility with Logistic Regression Model |
author |
Gonçalves, José |
author_facet |
Gonçalves, José Faria, Ana Bateira, Carlos Fernandes, Joana Oliveira, Ana |
author_role |
author |
author2 |
Faria, Ana Bateira, Carlos Fernandes, Joana Oliveira, Ana |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Gonçalves, José Faria, Ana Bateira, Carlos Fernandes, Joana Oliveira, Ana |
dc.subject.por.fl_str_mv |
Statistical Modelling Landslides Agriculture Terraces Douro Demarcated Region |
topic |
Statistical Modelling Landslides Agriculture Terraces Douro Demarcated Region |
description |
This paper focuses on the influence of Digital Elevation Models on the landslides susceptibility assessment in agricultural terraces, using Logistic Regression statistical model.This study was performed in a watershed located at Carvalhas Estate in Douro Valley, using an inventory of 109 landslides. To analyse the influence of the digital elevation model (DEM) resolution we used three DEMs, (A), (B) and (C). The DEMs (A) and (B) were directly obtained by processing aerial images and extracting different resolutions, 1 and 5 meters, respectively. The DEM (C), with 5m resolution, was processed with Topo to Raster interpolation method, using as input data contour lines of 10 m interval, elevation points and hydrography. The Logistic Regression was performed using two models which are distinguished by the independent variables selection. At model 1 was used the slope, curvature, raiser slope, riser height, contributing areas and topographic wetness index. In model 2 we decide remove the independent variables related with the terrace geometry, riser slope and riser height. The result seems to indicate that there is no significant influence of different resolutions of Digital Elevation Models in susceptibility modelling at this small scale and using statistical methods. The independent variables riser slope and riser height provide information of the terraces geometry and the construction techniques that enter the modelling process with more detailed information. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2018-01-01T00:00:00Z 2019-07-11T12:12:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/39052 |
url |
http://hdl.handle.net/10451/39052 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Oliveira, A., Fernandes, J., Bateira, C., Faria, A., Gonçalves, J. (2018). Influence of Digital Elevation Models on Landslide Susceptibility with Logistic Regression Model. Revista Do Departamento De Geografia, 36, 33-47. https://doi.org/10.11606/rdg.v36i0.150111. 2236-2878 10.11606/rdg.v36i0.150111 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo, Faculdade de Filosofia, Letras e Ciências Humanas Departamento de Geografia |
publisher.none.fl_str_mv |
Universidade de São Paulo, Faculdade de Filosofia, Letras e Ciências Humanas Departamento de Geografia |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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